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TW200705771A - Circuit for preventing over-boosting - Google Patents

Circuit for preventing over-boosting

Info

Publication number
TW200705771A
TW200705771A TW095120319A TW95120319A TW200705771A TW 200705771 A TW200705771 A TW 200705771A TW 095120319 A TW095120319 A TW 095120319A TW 95120319 A TW95120319 A TW 95120319A TW 200705771 A TW200705771 A TW 200705771A
Authority
TW
Taiwan
Prior art keywords
boosting
circuit
vout
vdd
charge pump
Prior art date
Application number
TW095120319A
Other languages
Chinese (zh)
Inventor
Shuhei Kawai
Original Assignee
Sanyo Electric Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sanyo Electric Co filed Critical Sanyo Electric Co
Publication of TW200705771A publication Critical patent/TW200705771A/en

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of DC power input into DC power output
    • H02M3/02—Conversion of DC power input into DC power output without intermediate conversion into AC
    • H02M3/04—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters
    • H02M3/06—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using resistors or capacitors, e.g. potential divider
    • H02M3/07—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using resistors or capacitors, e.g. potential divider using capacitors charged and discharged alternately by semiconductor devices with control electrode, e.g. charge pumps
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
    • H03K19/02—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components
    • H03K19/08—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using semiconductor devices
    • H03K19/094—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using semiconductor devices using field-effect transistors

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Dc-Dc Converters (AREA)

Abstract

An objective of the present invention is to provide a circuit for preventing over-boosting capable of eliminating influence of ripple occurred in a boosting circuit so as to avoid malfunction. In the circuit for preventing over-boosting of the present invention, a difference (Vdd-Vout) between a source voltage Vdd and an output voltage Vout (&lt0V) of a charge pump circuit 2 is so controlled as not to exceed a predetermined value VMAX. When Vdd-Vout &lt VMAX, the charge pump circuit 2 performs a boosting operation. When Vdd-Vout > VMAX, the charge pump circuit 2 stops the boosting operation. Since a reference voltage Vref of an operation amplifier 1 takes a ground voltage Vss as reference, influence of ripple occurred in the charge pump circuit 2 can be eliminated.
TW095120319A 2005-06-28 2006-06-08 Circuit for preventing over-boosting TW200705771A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005188472 2005-06-28

Publications (1)

Publication Number Publication Date
TW200705771A true TW200705771A (en) 2007-02-01

Family

ID=37597845

Family Applications (1)

Application Number Title Priority Date Filing Date
TW095120319A TW200705771A (en) 2005-06-28 2006-06-08 Circuit for preventing over-boosting

Country Status (4)

Country Link
US (1) US20070008028A1 (en)
KR (1) KR20070000999A (en)
CN (1) CN1893274A (en)
TW (1) TW200705771A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4917460B2 (en) * 2007-03-19 2012-04-18 ルネサスエレクトロニクス株式会社 Semiconductor device
WO2010032589A1 (en) * 2008-09-17 2010-03-25 旭化成エレクトロニクス株式会社 Charge pump circuit and semiconductor integrated circuit
JP5718067B2 (en) * 2011-01-17 2015-05-13 ラピスセミコンダクタ株式会社 Boosting system, diagnostic method, and diagnostic program
US11158390B2 (en) * 2019-10-02 2021-10-26 Silicon Motion, Inc. Method and apparatus for performing automatic power control in a memory device with aid of associated detection during initialization phase

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3129131B2 (en) * 1995-02-01 2001-01-29 日本電気株式会社 Boost circuit
JP3237654B2 (en) * 1999-05-19 2001-12-10 日本電気株式会社 Semiconductor device
US6310789B1 (en) * 1999-06-25 2001-10-30 The Procter & Gamble Company Dynamically-controlled, intrinsically regulated charge pump power converter
US6456153B2 (en) * 2000-05-04 2002-09-24 Texas Instruments Incorporated Method and apparatus for a regulated power supply including a charge pump with sampled feedback
TWI220588B (en) * 2003-05-15 2004-08-21 Amic Technology Corp Regulated charge pump

Also Published As

Publication number Publication date
CN1893274A (en) 2007-01-10
KR20070000999A (en) 2007-01-03
US20070008028A1 (en) 2007-01-11

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